Performance Analysis of Demand-Oblivious and Demand-Aware Optical Datacenter Network Designs

TL;DR

This paper analyzes the performance of optical datacenter network designs, highlighting how the optimal switch types depend on traffic patterns and flow size distributions, providing insights for better network design choices.

Contribution

It offers a formal analysis linking optical switch selection to traffic patterns and flow size distributions in datacenter networks.

Findings

Optimal switch types vary with traffic patterns

Flow size distribution influences network design choices

Provides a formal framework for performance analysis

Abstract

This paper presents a performance analysis of the design space of optical datacenter networks, including both demand-oblivious (static or dynamic) and demand-aware networks. We formally show that the number of specific optical switch types which should be used in an optimized datacenter network, depends on the traffic pattern, and in particular, the flow size distribution.